
import Vue from 'vue';

// v-dialogDrag: 弹窗拖拽属性
Vue.directive('dialogDrag', {
  bind(el, binding, vnode, oldVnode) {
    const dialogHeaderEl = el.querySelector('.el-dialog__header');
    const dragDom = el.querySelector('.el-dialog');
    //dialogHeaderEl.style.cursor = 'move';
    dialogHeaderEl.style.cssText += ';cursor:move;'
    dragDom.style.cssText += ';top:60px;'

    // 获取原有属性 ie dom元素.currentStyle 火狐谷歌 window.getComputedStyle(dom元素, null);
    const sty = (function() {
      if (window.document.currentStyle) {
        return (dom, attr) => dom.currentStyle[attr];
      } else{
        return (dom, attr) => getComputedStyle(dom, false)[attr];
      }
    })()

    dialogHeaderEl.onmousedown = (e) => {
      // 鼠标按下，计算当前元素距离可视区的距离
      const disX = e.clientX - dialogHeaderEl.offsetLeft;
      const disY = e.clientY - dialogHeaderEl.offsetTop;

      const screenWidth = document.body.clientWidth; // body当前宽度
      const screenHeight = document.documentElement.clientHeight; // 可见区域高度(应为body高度，可某些环境下无法获取)

      const dragDomWidth = dragDom.offsetWidth; // 对话框宽度
      const dragDomheight = dragDom.offsetHeight; // 对话框高度

      const minDragDomLeft = dragDom.offsetLeft;
      const maxDragDomLeft = screenWidth - dragDom.offsetLeft;
      const minDragDomTop = dragDom.offsetTop;
      const maxDragDomTop = screenHeight - dragDom.offsetTop;


      // 获取到的值带px 正则匹配替换
      let styL = sty(dragDom, 'left');
      let styT = sty(dragDom, 'top');

      // 注意在ie中 第一次获取到的值为组件自带50% 移动之后赋值为px
      if(styL.includes('%')) {
        styL = +document.body.clientWidth * (+styL.replace(/\%/g, '') / 100);
        styT = +document.body.clientHeight * (+styT.replace(/\%/g, '') / 100);
      }else {
        styL = +styL.replace(/\px/g, '');
        styT = +styT.replace(/\px/g, '');
      };

      document.onmousemove = function (e) {
        // 通过事件委托，计算移动的距离
        let left = e.clientX - disX;
        let top = e.clientY - disY;
        // 边界处理
        if (-(left) > minDragDomLeft) {
          left = -(minDragDomLeft);
        } else if (left > maxDragDomLeft) {
          left = maxDragDomLeft;
        }

        if (-(top) > minDragDomTop) {
          top = -(minDragDomTop);
        } else if ((top > maxDragDomTop)) {
          top = maxDragDomTop;
        }

        // 移动当前元素
        dragDom.style.cssText += `;left:${left + styL}px;top:${top + styT}px;`;
      };

      document.onmouseup = function (e) {
        document.onmousemove = null;
        document.onmouseup = null;
      };
    }
  }
})
Vue.filter('formatMoneyNumber', function (value) {
  if (!value) return '0.00'
  if (value > 100000000 || value < -100000000) {
    return Number(value / 100000000).toFixed(2)
  } else if (value > 10000 || value < -10000) {
    return Number(value / 10000).toFixed(2)
  } else {
    return Number(value).toFixed(2)
  }
})
Vue.filter('formatMoney', function (value) {
  if (!value) return '0.00'
  if (value > 100000000 || value < -100000000) {
    return Number(value / 100000000).toFixed(2) + '亿'
  } else if (value > 10000 || value < -10000) {
    return Number(value / 10000).toFixed(2) + "万"
  } else {
    return Number(value).toFixed(2) + '元'
  }
})
Vue.filter('formatNumberMoney', function (value) {

  if (value > 100000000 || value < -100000000) {
    return Number(value / 100000000)
  } else if (value > 10000 || value < -10000) {
    return Number(value / 10000)
  } else {
    return Number(value)
  }
})
/**
 * 通过数字获取到数字转换后的单位
 */
Vue.filter('getUnit', function (value) {
  if (!value) " "
  value = Math.abs(value)
  if (value > 100000000) {
    return "亿"
  } else if (value > 10000) {
    return "万"
  } else {
    return "元"
  }
})
Vue.filter('formatPhone', function (value) {
  if (!value) return ''
  if (value.length > 7 ) {
    return value.substring(0,3)+'****'+ value.substring(7,value.length);
  }  else {
    return value.substring(0,value.length-1)+'****';
  }
})
Vue.filter('formatName', function (value) {
  let newStr;
  if (value.length === 2) {
  newStr = value.substr(0, 1) + '*';
  } else if (value.length > 2) {
    let char = '';
    for (let i = 0, len = value.length - 2; i < len; i++) {
      char += '*';
    }
    newStr = value.substr(0, 1) + char + value.substr(-1, 1);
  } else {
    newStr = value;
  }

  return newStr;
})

